CN211164879U - Multicolor mould rotating core buffer structure - Google Patents

Abstract

The utility model discloses a polychrome mould changes core buffer structure, which comprises a fixing plate and i, set up on the fixed plate and supply to change the gliding tooth's socket of rack in the core structure, buffer structure sets up on the fixed plate and is located the preceding tip of rack, buffer structure is including setting up the spacing screw of tip before the rack and setting up the buffer block of tip both sides before the rack, the fixed slot has been seted up on the fixed plate, the fixed slot is linked together with the tooth's socket, the buffer block slides and sets up in the fixed slot, the buffer block is provided with buffer spring on keeping away from the lateral wall of rack one end, buffer spring's the other end and fixed slot lateral wall butt, spacing screw sets up on the lateral wall of fixed plate, the. The utility model discloses change core structure behind rotatory demand position, hydro-cylinder drive mechanism can mild stall to the accurate demand position that reachs stops, changes the accurate return that the core structure can be smooth.

Description

Multicolor mould rotating core buffer structure

Technical Field

The utility model relates to the technical field of mold, especially, relate to a polychrome mould changes core buffer structure.

Background

With the continuous promotion of domestic mould technique, polychrome mould has obtained more and more universal application with its degree of automation height, and product quality is stable, and the human cost is low grade advantage. Meanwhile, various structures and modes are derived, wherein the core rotating mold is low in modification cost, and good in practicability and is favored by manufacturers. However, the conventional die has many defects to be improved because the rotational inertia control of the rotary core is particularly important, and after the rotary core rotates, most of the gravity inertia transmission mechanisms are hard limiting, so that the die core directly impacts the limiting block after rotating to the limiting position, and then the rotary core partially rebounds, so that the rotary core cannot return according to the correct position, and the phenomena of blocking and abnormal pressing of the die in the die production are caused.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a polychrome mould changes core buffer structure to the not enough of above-mentioned prior art.

In order to solve the above problems, the utility model adopts the following technical proposal:

the utility model provides a polychrome mould changes core buffer structure, includes the fixed plate, offer the confession on the fixed plate change the gliding tooth's socket of rack in the core structure, buffer structure sets up on the fixed plate and is located the preceding tip of rack, buffer structure is including setting up in the spacing screw of tip before the rack and setting the buffer block of tip both sides before the rack, the fixed slot has been seted up on the fixed plate, the fixed slot with the tooth's socket is linked together, the buffer block slide set up in the fixed slot, the buffer block is kept away from be provided with buffer spring on the lateral wall of rack one end, buffer spring's the other end with fixed slot lateral wall butt, spacing screw set up in on the lateral wall of fixed plate, spacing screw's tip insert in the fixed slot and with the rack front end is corresponding.

Furthermore, the buffer block comprises a sliding block and a positioning block which are integrally connected, the buffer spring is arranged between the sliding block and the side wall of the fixing groove, the positioning block is arranged at the other end of the sliding block close to the rack, and the rack is provided with a positioning groove matched with the positioning block.

Furthermore, one end of the positioning block, which is in contact with the rack, is of a V-shaped structure, and the positioning groove is a V-shaped groove matched with the positioning block.

Furthermore, a limiting block is arranged in the fixed groove and located on two sides of the buffer block, and a clamping table clamped with the sliding block is arranged on the limiting block.

Furthermore, a stop nut is arranged on the limiting screw.

Adopt the produced beneficial effect of above-mentioned technical scheme to lie in:

the utility model discloses one end of commentaries on classics core structure is provided with buffer gear, has solved traditional mould and has rotated the core structure and rotate the end because gravity inertia drive mechanism is mostly hard spacing, leads to changeing the core and directly striking spacing screw after rotating the spacing, then has some resilience, leads to changeing the core structure and can not return according to the exact position, thereby causes the production of mould card pause and the unusual problem of moulding-die; the utility model discloses change core structure behind rotatory demand position, hydro-cylinder drive mechanism can mild stall to the accurate demand position that reachs stops, changes the accurate return that the core structure can be smooth.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is an enlarged view of portion A of FIG. 1;

in the figure: 1. a fixing plate; 2. a rack; 3. a tooth socket; 4. a limiting screw; 5. a buffer block; 51. a slider; 52. positioning blocks; 6. fixing grooves; 7. a buffer spring; 8. positioning a groove; 9. a limiting block; 10. clamping a platform; 11. and (4) stopping the nut.

Detailed Description

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

As shown in figures 1-2, the present invention is a specific embodiment of a multi-color mold rotary core buffer structure, comprising a fixed plate 1, a rotary core structure disposed on the fixed plate 1, the rotary core structure comprising an oil cylinder, a piston end of the oil cylinder being provided with a rack 2, the rack 2 being engaged with a gear ring on a rotary shaft, a tooth socket 3 for the rack 2 to slide in the rotary core structure being disposed on the fixed plate 1, the buffer structure being disposed on the fixed plate 1 and located at a front end portion of the rack 2, the buffer structure comprising a limit screw 4 disposed at the front end portion of the rack 2 and two buffer blocks 5 disposed at two sides of the front end portion of the rack 2, a fixed slot 6 disposed on the fixed plate 1, the fixed slot 6 being communicated with the tooth socket 3, two buffer blocks 5 being slidably disposed in the fixed slot 6, a buffer spring 7 being disposed on a side wall of the buffer block 5 away from one end of, the other end of the buffer spring 7 is abutted against the side wall of the fixing groove 6, the limiting screw 4 is arranged on the front side wall of the fixing plate 1, and the end part of the limiting screw 4 is inserted into the fixing groove 6 and corresponds to the front end of the rack 2. The length of the limiting screw 4 extending into the fixing groove 6 can be adjusted by rotating the limiting screw 4.

Further, the buffer block 5 comprises a sliding block 51 and a positioning block 52 which are integrally connected, the buffer spring 7 is arranged between the sliding block 51 and the side wall of the fixing groove 6, the positioning block 52 is arranged at the other end of the sliding block 51 close to the rack 2, and the rack 2 is provided with a positioning groove 8 matched with the positioning block 52.

Furthermore, one end of the positioning block 52 contacting the rack 2 is of a V-shaped structure, and the positioning groove 8 is a V-shaped groove matched with the positioning block. The V-shaped structure at the front end of the positioning block 52 and the V-shaped groove in the rack 2 are arranged, so that the rack 2 is in sliding contact with the positioning block 52, the rack 2 slides in and slides out conveniently, the front end of the rack 2 is provided with an inclined plane matched with the V-shaped structure, and the rack 2 is pushed open by two buffer blocks 5 when sliding forwards conveniently.

Further, be provided with stopper 9 through the screw fixation in the fixed slot 6, stopper 9 is located 5 both sides of buffer block, be provided with on the stopper 9 with the card platform 10 of slider 51 joint, buffer block 5 that slider 51 and locating piece 52 combination formed is type of protruding, stopper 9 and card platform 10 integrated into one piece, wholly are L type, and stopper 9 can guarantee that buffer block 5 slides steadily at certain extent.

Furthermore, a stop nut 11 is arranged on the limit screw 4.

The action flow is as follows:

the hydro-cylinder output power promotes rack rapid movement forward, because blockking of buffer block when its head contacts the buffer block of both sides, rack speed drops to near zero, at this moment, the hydro-cylinder continues to exert pressure, buffer spring atress at rack rear portion slowly retreats when pressure to a certain extent, then the rack speed that has been slow passes through between two buffer blocks, the rack head supports at the spacing screw tip, the locating piece slides in the constant head tank, change the core structure behind rotatory demand position, hydro-cylinder drive mechanism can mild stall, thereby the accuracy reaches the demand position and stops, it can accurate return smoothly to change the core structure.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the embodiments of the present invention.

Claims (5)

1. The utility model provides a polychrome mould changes core buffer structure, includes fixed plate (1), offer on fixed plate (1) and supply in the commentaries on classics core structure gliding tooth's socket (3) of rack (2), characterized in that, buffer structure sets up on fixed plate (1) and is located the preceding tip of rack (2), buffer structure includes set up in rack (2) preceding tip spacing screw (4) and set up buffer block (5) of rack (2) preceding tip both sides, set up fixed slot (6) on fixed plate (1), fixed slot (6) are linked together with tooth's socket (3), buffer block (5) slide and set up in fixed slot (6), be provided with buffer spring (7) on the lateral wall of buffer block (5) keeping away from rack (2) one end, the other end of buffer spring (7) with fixed slot (6) lateral wall butt, the limiting screws (4) are arranged on the side wall of the fixing plate (1), and the end portions of the limiting screws (4) are inserted into the fixing grooves (6) and correspond to the front ends of the racks (2).

2. The multi-color mold rotary core buffering structure according to claim 1, wherein the buffering block (5) comprises a sliding block (51) and a positioning block (52) which are integrally connected, the buffering spring (7) is arranged between the sliding block (51) and the side wall of the fixing groove (6), the positioning block (52) is arranged at the other end of the sliding block (51) close to the rack (2), and the rack (2) is provided with a positioning groove (8) which is matched with the positioning block (52).

3. The multi-color mold rotary core buffer structure according to claim 2, wherein one end of the positioning block (52) contacting the rack (2) is of a V-shaped structure, and the positioning groove (8) is a V-shaped groove matched with the positioning block (52).

4. The multi-color mold rotary core buffer structure according to claim 2, wherein a limiting block (9) is arranged in the fixing groove (6), the limiting block (9) is located on two sides of the buffer block (5), and a clamping table (10) clamped with the sliding block (51) is arranged on the limiting block (9).

5. The multi-color mold rotary core buffer structure according to claim 1, wherein the limit screw (4) is provided with a retaining nut (11).

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